Of course, in those places where a sexual contract can be legally and therefore enforced, the person that wishes the contract to be enforced must always consider the costs of compelling the enactment of the contract. Generally, in civil cases, each party pays its own court costs unless the legislation specifically states that the losing party must pay. You would have to decide whether what you would recoup offsets what you would pay in costs. Of course, there are situations where a person does not care that he would lose money just to prove a point.